A Bass-Serre theoretic proof of a theorem of Romanovskii and Burns
A well known theorem of Romanovskii and Burns states that a free product of subgroup separable groups is itself subgroup separable. We provide a proof using the language of immersions and coverings of graphs of groups, due to Bass.
| 主要作者: | |
|---|---|
| 格式: | Journal article |
| 語言: | English |
| 出版: |
Taylor & Francis
2022
|